* {
    font-family: "Microsoft YaHei UI", serif;
}

.back {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.content {
    margin: auto;
    background-color: #607d8b29;
    border-radius: 5px;
    padding: 15px 25px;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    -moz-appearance: textfield;
}

.info-table {
    margin: 2px auto;
    border: 1px solid silver;
    border-spacing: 0;
}

.info-table td,
.info-table th {
    border: 1px solid silver;
    padding: 3px 15px 3px 15px;
}
